ST7735S driver with SPI is broken by AXP192 feature

[rafacouto]

When enabling st7735s driver with SPI, the compilation is broken:

In file included from ../components/lvgl_esp32_drivers/lvgl_tft/st7735s.c:9:
../components/lvgl_esp32_drivers/lvgl_tft/st7735s.c: In function 'i2c_master_init':
../components/lvgl_esp32_drivers/lvgl_tft/st7735s.h:31:22: error: 'CONFIG_LV_AXP192_PIN_SDA' undeclared (first u
se in this function);
../components/lvgl_esp32_drivers/lvgl_tft/st7735s.h:32:22: error: 'CONFIG_LV_AXP192_PIN_SCL' undeclared (first use in this function);

[rafacouto]

It is already corrected on develop branch. Closing this one.